A new key command "ctrl-t i" is added to allow the user to display the
various session settings information (baudrate, databits, log file, etc.).
This is usefull in case you have a running session but have forgotten
what the settings are.
To display the total number of bytes transmitted/received simply perform the
'ctrl-t s' command sequence.
This feature can be useful when eg. trying to detect non-printable
characters.
Changed so that the "ctrl-t ctrl-t" sequence is now simply "ctrl-t t" to
send the ctrl-t key code. This is inspired by screen which does similar
to send its command key code (ctrl-a a).
This change also allows to easier add new key commands if needed.
Updated man page accordingly.
Set "tainted" if and only if any character was read from the device.
Ctrl-t is no longer sent to the device on exit, so the trick to avoid
its echo is not necessary.
Characters read from stdin don't directly affect output, so they
shouldn't enable "tainted".
Don't needlessly copy command-line arguments into fixed-size buffers.
Previously the program crashed if an overlong pathname was provided on
the command line. Also, some systems (such as GNU Hurd) don't define
MAXPATHLEN at all.
Before, when exercising the quit key sequence (ctrl-t + q) the ctrl-t code
(0x14) would be sent.
This is now fixed so that it is not sent.
However, in case it is needed to send ctrl-t to the device it is possible by
simply repeating the ctrl-t.
Meaning, ctrl-t + ctrl-t = ctrl-t sent to device.
After renaming to "tio" it makes sense to change the escape key
accordingly. Hence, the new escape key is ^t.
Meaning, in session, its now ctrl-t + q to quit.
Renamed to "tio" because it is shorter and this new name also more
precisely reflects what the program is - a simple TTY terminal I/O
application.
"tio" can be considered short for terminal I/O or TTY I/O or a
combination of the two, whichever you prefer.
Also, wanted to avoid naming conflicts with other projects.
